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    <title>基于Hadoop的降雨量分析系统</title>
    <style>
        :root {
            --primary: #3b82f6;
            --primary-dark: #2563eb;
            --secondary: #10b981;
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        h1 {
            font-size: 2.5rem;
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        .hero p {
            font-size: 1.2rem;
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        .grid {
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            gap: 1.5rem;
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            padding: 0.75rem 1.5rem;
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        .button:hover {
            background-color: var(--primary-dark);
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        footer {
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            color: white;
            text-align: center;
            padding: 1rem 0;
            margin-top: 2rem;
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    </style>
</head>
<body>
<header>
    <div class="container">
        <nav>
            <div class="logo">降雨量分析系统</div>
            <div class="nav-links">
                <a href="#home">首页</a>
                <a href="#tasks">任务</a>
                <a href="#visualization">可视化</a>
                <a href="#personal-center-user">个人中心</a>
                <a href="/logout">退出账号</a>
            </div>
        </nav>
    </div>
</header>

<main>
    <div class="container">
        <section class="hero">
            <h1>基于Hadoop的降雨量分析系统</h1>
            <p>高效分析和可视化降雨数据，助力气象研究和预测</p>
        </section>

        <div class="grid">
            <div class="card">
                <h2>提交任务</h2>
                <p>快速提交新的降雨量分析任务，获取实时数据洞察。</p>
                <a href="#" class="button">开始新任务</a>
            </div>
            <div class="card">
                <h2>任务状态</h2>
                <p>实时监控任务进度，随时了解分析状态。</p>
                <a href="#" class="button">查看状态</a>
            </div>
            <div class="card">
                <h2>数据可视化</h2>
                <p>直观展示降雨量趋势，支持多维度数据分析。</p>
                <a href="#" class="button">查看图表</a>
            </div>
            <div class="card">
                <h2>用户管理</h2>
                <p>管理用户权限，确保数据安全和隐私。</p>
                <a href="#" class="button">管理用户</a>
            </div>
        </div>
    </div>
</main>

<footer>
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        <p>&copy; 2024 气象降雨量分析系统 | 技术支持：Hadoop</p>
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